Chinese glue website releases precautions for using glue
Glue plays an important role in daily life and work, as it can achieve adhesion between objects and tightly bond various materials together. However, when using glue, there are some precautions and influencing factors that we need to pay attention to and understand.
Firstly, the working principle of glue is to achieve adhesion between objects through the chemical components in the glue. The polymer in the glue appears as circular particles in an aqueous environment, with a radius generally between 0.5 and 5 microns. Water is the carrier of polymer materials. When we apply glue to the surface of an object, water slowly penetrates into the tissue of the object. As the water disappears, the tension between the polymer materials tightly binds the two objects together. In addition, when using glue, environmental conditions such as stress, temperature and humidity, chemical media, outdoor conditions, etc. can have a significant impact on the bonding performance.
The force situation is one of the important factors affecting the selection of glue. For different stress situations, we need to choose the appropriate type of adhesive. When the adhesive is subjected to uneven pulling force, a tough adhesive such as rubber adhesive or polyurethane adhesive can be chosen; When subjected to uniform tensile or shear forces, it is necessary to choose adhesives with higher hardness and strength, such as epoxy adhesives or acrylic adhesives.
The temperature condition is also one of the factors affecting the selection of glue. Different types of adhesives have different heat resistance, so we need to choose the appropriate type of adhesive at different temperatures.
Humidity has a significant impact on the stability of the bonding interface. Moisture and water can have adverse effects on bonding, as the small volume and high polarity of water molecules can cause damage or detachment of the bonding surface, thereby reducing the bonding strength and durability. Therefore, if the adhesive needs to have good water resistance, we should choose types of adhesives such as epoxy glue or polyurethane glue.
Chemical media is also one of the factors that need to be considered. Different types of adhesives have different resistance to media in different chemical media. Therefore, it is necessary to choose the appropriate adhesive and sealant according to the medium that the adhesive is in contact with.
Under outdoor conditions, the environment in which the adhesive parts are located is relatively complex. Factors such as temperature changes, wind and rain, sun exposure, and freezing can accelerate the aging of the adhesive layer and shorten its service life. Therefore, under outdoor conditions, we need to choose adhesives with high temperature curing and good resistance to atmospheric aging, such as phenolic or epoxy adhesives; In terms of sealing, silicone sealant should be chosen.
Chinese glue website releases precautions for using glue
In short, understanding the precautions and influencing factors of using glue, selecting the appropriate type of glue and using it under appropriate conditions can ensure the best bonding effect, improve work efficiency and bonding quality.
